Zack, Lisa and Screech open their own advice hotline. Soon Lisa becomes a hit, but Zack becomes so envious that he fires her. Soon he and Screech start giving out rotten advice which creates a riot in the school and a mix up between Kelly and her sister who also has a crush on Zack.
Elenco: Dennis Haskins , Lark Voorhies , Elizabeth Berkley , Mario López , Tiffani Thiessen , Mark-Paul Gosselaar , Leanna Creel , Pamela Kosh , Troy Fromin .